Water → 1-(2,6-Bisbenzyloxy-4-methylphenyl)ethanone

HRID 1182022

반응식

HRID 1182022 반응식
[OH:1][C:2]1[CH:7]=[C:6]([CH3:8])[CH:5]=[C:4]([OH:9])[C:3]=1[C:10](=[O:12])[CH3:11].[CH2:13](Br)[C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1.C(=O)([O-])[O-].[K+].[K+].O>CN(C)C=O.C(OCC)(=O)C>[CH2:13]([O:1][C:2]1[CH:7]=[C:6]([CH3:8])[CH:5]=[C:4]([O:9][CH2:10][C:3]2[CH:4]=[CH:5][CH:6]=[CH:7][CH:2]=2)[C:3]=1[C:10](=[O:12])[CH3:11])[C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1

참가 물질

7

반응물 4

HCID 962WaterHCID 7498Benzyl BromideHCID 11430Potassium CarbonateHCID 104195313,5-Dihydroxy-4-acetyltoluene

생성물 1

HCID 220166451-(2,6-Bisbenzyloxy-4-methylphenyl)ethanone수율 79.9%

시약·촉매·용매 2

HCID 6228Dimethylformamide용매HCID 8857Ethyl Acetate용매

실험 절차

1.62 g (9.75 mmol) of 1-(2,6-dihydroxy-4-methylphenyl)ethanone (35) are dissolved in 30 ml of dimethylformamide, and 4.0 ml (33.7 mmol) of benzyl bromide and 13.8 g (100 mmol) of potassium carbonate are added. The reaction mixture is stirred at room temperature for 3 hours. This is followed by addition of water and extraction twice with ethyl acetate. The combined organic phases are washed with saturated sodium chloride solution, dried over sodium sulfate and concentrated in a rotary evaporator. 1.35 g (40%) of compound 36 are obtained as a colorless crystalline product. C23H22O3 (346.2) MS (ESI+): 347.15 (M+H+).

후처리

  1. washThe combined organic phases are washed with saturated sodium chloride solution
  2. dry with materialdried over sodium sulfate
  3. concentrationconcentrated in a rotary evaporator

출처 및 근거

ORD 기록
ord-8db692d3984a417d809066e3c39e735c
출처 데이터셋
uspto-grants-2007_10
특허 번호
US07288528B2

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